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Topical chemoprevention of skin cancer in mice, using combined inhibitors of 5-lipoxygenase and cyclo-oxygenase-2

Published online by Cambridge University Press:  08 March 2017

L Fegn  and
Z Wang
L Fegn
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Boston Medical Center, Boston University School of Medicine, Massachusetts, USA Department of Clinical Medicine, Xian Medical Institute, Shanxi, PR China
Z Wang*
Affiliation:
Department of Otolaryngology Head and Neck Surgery, Boston Medical Center, Boston University School of Medicine, Massachusetts, USA
*
Address for correspondence: Dr Zhi Wang, 820 Harrison Ave 4014, Boston, MA 02118, USA. Fax: +1 617 414 1591 E-mail: [email protected]
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Abstract

Objective:

Skin cancer is the most common cancer, and often occurs in the head and neck region. This study aimed to investigate whether a combination of inhibitors of cyclo-oxygenase-2 and 5-lipoxygenase, applied via a microemulsion delivery system, would be effective in topically inhibiting skin carcinogenesis.

Study design:

Randomised animal study.

Methods:

Twenty-four nude mice were intradermally inoculated with carcinoma cells and then divided into three groups (eight animals each): group one received no treatment; group two received celecoxib alone; and group three received a combination of zileuton and celecoxib. Tumour incidence and growth were measured for 14 days.

Results:

Both treatments significantly delayed the onset and development of tumours. However, the combined treatment had the best response (p < 0.01).

Conclusion:

The results clearly showed that topical treatment with either celecoxib alone or celecoxib plus zileuton significantly inhibited skin carcinogenesis, and that a combination of both agents had the best results.

Keywords

Skin NeoplasmsTopical AdministrationChemopreventionInhibitorsMice
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 123 , Issue 8 , August 2009 , pp. 880 - 884
Copyright
Copyright © JLO (1984) Limited 2009

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Footnotes

Presented as a poster at the 14th European Cancer Conference, 23–27 September 2007, Barcelona, Spain.

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